How Removing Broken Links Improves Site Speed and Core Web Vitals
While broken links don't directly affect page load time, they do impact user experience metrics that Google now ranks. Removing them is part of a holistic optimization strategy.
For additional speed guidance and Core Web Vitals best practices, read the Google Web Fundamentals performance guide.
Use a monitoring pipeline (Lighthouse CI / PageSpeed Insights API) so that every push checks LCP and CLS before deployment. This ensures SEO from performance stays stable over time.
The Indirect Performance Connection
Users who click a broken link and see a 404 page will likely navigate away. This increases your site's bounce rate and decreases session duration—both negative signals in Google's eyes.
Core Web Vitals Implications
- Largest Contentful Paint (LCP): While a 404 page won't slow your LCP directly, users leaving immediately due to frustration increases your average LCP across all users.
- Cumulative Layout Shift (CLS): Poorly implemented 404 pages might have layout issues.
- First Input Delay (FID): Keep your site responsive by not wasting server resources on broken link processing.
Best Practices for 404 Pages
✓ Do This:
Create a helpful 404 page with links to popular pages and a search bar.
✗ Don't Do This:
Let broken links go unchecked or redirect to vague landing pages.
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